Sony SA-WM200 User manual

SA-WM200
SERVICE MANUAL
SPECIFICATIONS
US Model
Canadian Model
AEP Model
UK Model
E Model
9-877-108-01
2003B0200-1
© 2003.02
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
ACTIVE SUBWOOFER
Ver 1.0 2003.02
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, from 28 – 200 Hz; rated 80 watts, minimum RMS
power, with no more than 0.8 % total harmonic distortion from 250
milliwatts to rated output.
System
Type
Active Subwoofer (magnetically shielded design)
Speaker unit
Woofer: 20 cm dia. (8 in.), cone type
Amplifier section
Continuous RMS output : (0.8%) 80W
Reproduction frequency range
28 Hz – 200 Hz
High frequency cut-off frequency
50 Hz – 200 Hz
Phase selector
NORMAL, REVERSE
Inputs
Input jacks
INPUT: input pin jack
SPEAKER IN: input terminals
Output jacks
SPEAKER OUT: output terminals
General
Power requirements
USA and Canada models: 120 V AC, 60 Hz
Other models: 220-230V AC, 50/60 Hz
Power consumption
100 W
Dimensions
Approx. 270 x 325 x 398 mm
(10 3/4x 12 7/8x 15 11/16 in.) (w/h/d)
Mass
10 kg (22 lb 1oz)
Supplied accessories
Foot pads (4)
Audio connecting cord (1 phono – 1 phono),
2 m (6 ft 6 1/2in.) (1)
Speaker cords, 2.5 m (8 ft 2 1/2in.) (2)
Design and specifications are subject to change without notice.

2
SA-WM200
Specifications ........................................................................... 1
1. GENERAL ...................................................................... 3
2. DIAGRAMS
2-1. Circuit Boards Location ............................................. 3
2-2. Printed Wiring Boards – Main Section – .................... 4
2-3. Printed Wiring Boards – Input Control Section – ....... 5
2-4. Printed Wiring Boards – Power Section – .................. 6
2-5. Schematic Diagram – Main Section (1/2) – ............... 7
2-6. Schematic Diagram – Main Section (2/2) – ............... 8
3. EXPLODED VIEWS
3-1. Main Section ............................................................... 9
4. ELECTRICAL PARTS LIST ................................... 10
TABLE OF CONTENTS
SAFETY CHECK-OUT
(US model)
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage. Check
leakage as described below.
LEAKAGE
The AC leakage from any exposed metal part to earth Ground
and from all exposed metal parts to any exposed metal part
having a return to chassis, must not exceed 0.5 mA (500
microampers). Leakage current can be measured by any one of
three methods.
1. A commercial leakage tester, such as the Simpson 229 or
RCA WT-540A. Follow the manufacturers’ instructions to
use these instruments.
2. A battery-operated AC milliammeter. The Data Precision
245 digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit”
indication is 0.75 V, so analog meters must have an accurate
low-voltage scale. The Simpson 250 and Sanwa SH-63Trd
are examples of a passive VOM that is suitable. Nearly all
battery operated digital multimeters that have a 2V AC range
are suitable. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
0.15µF
To Exposed Metal
Parts on Set
1.5kΩ
AC
voltmeter
(0.75V)
Earth Ground
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED
LINE WITH MARK 0ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.

33
SA-WM200
SECTION 1
GENERAL
This section is extracted from
instruction manual.
LEVEL
PHASE
POWER
POWER indicator
CUT OFF FREQ
CUT OFF FREQ
200H z
NORMAL
REVERS E
50H z
PHASE
POWER
LEVEL
MIN MAX
FRONT VIEW REAR VIEW
• Location of controls
SECTION 2
DIAGRAMS
For Schematic Diagrams.
Note:
•All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or
less are not indicated except for electrolytics and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise specified.
•C: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note :
•X: parts extracted from the component side.
•x: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
•Abbreviation
CND : Canadian model
MY : Malaysia model
SP : Singapore model
•A: B+ Line.
•B: B– Line.
•Voltages are dc with respect to ground under no-signal conditions.
•no mark : Power on
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
•Signal path.
F: AUDIO
•Abbreviation
CND : Canadian model
MY : Malaysia model
SP : Singapore model
Note:
The components identi-
fied by mark 0or dotted
line with mark 0are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
2-1. CIRCUIT BOARDS LOCATION
SWITCH board
INPUT CONTROL board
MAIN board
POWER TRANS boar
d
CONTROL board

44
SA-WM200
2-2. PRINTED WIRING BOARDS – MAIN Section –
CN402
CN301
CN204
IC301
RY301
C401 C402
C405
C407 C408
D402
D403
Q501
Q502
Q503
Q504
D501
C501
C502
E
E
C503
R403
R404
C308
C306
C307
R307
C302
R301
R302
R401
R402
D304
R311
R312
C309
C310
R502
R503
JW102
JW116
JW402
C303
JW114
JW115
R308
D401
D301
JW106
R309
R303
C301
JW301
R508
Q505 R506
D502 R507
JW401
JW124
JW126
JW127
JW501
C312
R505
R304
R501
G1
G2
JW112
R500
C409
C410
C313
JW128
R313
R315
D302
C406
R207
C203
C204
R208
R209
R210
R205
R212
R213
C208
R215
R216
C210
R217
C207
R214
C305
C304
R504
C601
D602
R601
D205
D206
C205
C206
JW123
JW105
CNP801
C801
IC203
IC202
JW107
CN201
JW108
JW132
JW109
R305
C311
CN202
JW125
JW110
R314
JW111
JW129
R306
JW101
CNP111
RV801
C404
JW404
JW403
JW103
JW104
C211
C209
JW117
JW118
R211
JW120
JW121
JW130
JW131
JW122
JW133
JW134
JW119
R206
R310
C403
JW135
11
(11)
1-686-982-
CONTROL BOARD
11
(11)
1-686-983-
MAIN BOARD
1
1
1
1
111
6
6
2
2
3
3
5
(CHASSIS) (CHASSIS)
LEVEL
CBD
A
INPUT
CONTROL
BOARD
(Page 5)
INPUT
CONTROL
BOARD
(Page 5)
SWITCH
BOARD
(Page 6)
POWER
BOARD
(Page 6)
SP901
SPEAKER
113
14
5
8
14
5
8
E
E
E
23 4 5 6 7 8
A
1
B
C
D
E
zSee page 3 for Notes. z See page 3 for Circuit Boards Location.
Ref. No. Location
zSemiconductor
Location
D205 C-6
D206 C-6
D301 E-3
D302 E-3
D304 C-4
D401 C-2
D402 C-3
D403 C-3
D501 B-4
D502 E-3
D602 B-5
IC202 C-6
IC203 C-7
IC301 E-5
Q501 B-4
Q502 C-4
Q503 B-5
Q504 B-5
Q505 E-3

55
SA-WM200
2-3. PRINTED WIRING BOARDS – INPUT CONTROL Section – zSee page 3 for Notes. z See page 3 for Circuit Boards Location.
IC201
IC701
R105 R106
R104
D204
R203
C101
C201
R110
S701
S701
RV701
RV701
R702 R703
R705
R706
R707
R708
C701C702
C703
C704
C705
C706
CN701
CN101
R107
R101
R108
R109
JW207
D203
JW208
J101
JW210
TM101
SPEAKER
R103
R102
R204
R704
R701
D202
D201
JW204
JW205
JW209
JW701
JW702
JW206
R202
R201
INPUT CONTROL BOARD
11
(11)
1-686-985-
INPUT
CUT OFF FREQ
PHASE
14
5
8
1
1
14
5
5
5
8
– +
OUT
IN
LR
–+
B
C
MAIN
BOARD
(Page 4)
MAIN
BOARD
(Page 4)
NORMAL REVERSE
t
23 4 5 6
A
1
B
C
Ref. No. Location
zSemiconductor
Location
D201 B-6
D202 B-5
D203 B-5
D204 B-5
IC201 B-5
IC701 B-1

66
SA-WM200
2-4. PRINTED WIRING BOARDS – POWER Section – zSee page 3 for Notes. z See page 3 for Circuit Boards Location.
CN1
CN2
F901
JW1
FH952
FH951
C2
CN3
D901
CN901
CNP401
FH901
C901
FH902
JW2
S901
SWITCH BOARD
11
(11)
1-686-984-
POWER TRANS BOARD
11
(11)
1-686-986-
T1
POWER TRANSFORMER
17
1
1
2
2
12
D
MAIN
BOARD
(Page 4)
AMAIN
BOARD
(Page 4)
AC IN
POWER
POWER
23 4 5 6
A
1
B
C
D

77
SA-WM200
2-5. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – zSee page 3 for Notes.
C706
R707
R706
R704
C704
C705
R705
R703
C703
R702
C209
CNP801
CNP111 C801
RV801
C210
R217 C211
R210
R211
D206
D205
C206
C205
R208
R209
C204
C203
CN101 CN202
R207
C201
R110
C101
IC201(1/2)
R108
R106
R107
R109
R203
R204
D204
D203
R104
R102
R101
R103
R105 R701
C702
C701
D201
D202
G2
CN201
CN701
IC201(2/2) IC202(1/2)
IC202(2/2) IC701(2/2)
IC203(1/2)
IC203(2/2)
IC701(1/2)
R215
R205
R216
R201
TM101
J101
S701
RV701
R708
22
50V
10k
4.7k
4.7k
0.47
0.1
220k
4.7k
4.7
50V
10k
220p
3P
3P 10
50
20k
10
50V
100k 220p
470k
220k
MTZJ12B
MTZJ12B
10
50V
10
50V
10k
100k
0.1
0.1
5P 5P
10k
10
50V
100k
220p
M5218
100k
4.7k
4.7k
100k
4.7k
4.7k
1SS133T
1SS133T
4.7k
100k
4.7k
100k
4.7k 4.7k
47
25V
47
25V
1SS133T
1SS133T
TERMINAL
EARTH
5P
5P
M5218
LIMITER AMP
M5218
MIX AMP
M5218
HIGH PASS
FILTER
M5218
FILTER AMP
M5218
FILTER AMP
M5218
BUFFER
M5218
LOW PASS
FILTER
10k
JW
JW
4.7k
20k/20k
10k
2
1
3
4
1
2
38
5
67
4
1
2
38
5
67
4
1
38
2
5
67
4
5
67
4
1
2
38
LEVEL
SPEAKER
INPUT
PHASE
NORMAL REVERSE
CUT OFF FREQ

88
SA-WM200
2-6. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – zSee page 3 for Notes.
CN10
CN20 CN3
JW1
CNP401
CN402
CN301
R404
R403
C409
C410
D403
C408
C407
JW403
JW404
R501 R500
D501
R503
C502
R505
Q503
Q504
R508
C503
CN901
CN204
D602
R301
C302
R302
R315
R313 C303
R303
C312
R304
C304
C305
C306
C311
R305
R314
C307
R306
C313
C308
R308
C309
C310
R310
R311
D304
RY301
R312
C401
C402
D401
C403
C404
JW401
C405
C406
JW402
D901
R507 D502
JW501
D402
D301
D302
R401
R402
R309
G1
C301
R601 C601
SP901
C2
S901 C901
IC301
C501
F901
Q502 R502
R504
R307
R506
Q505
Q501
2P
2P 2P
6P
6P
2P
10
1/4W
10
1/4W
0.1
0.1
11ES2
470
50V
470
50V
10k 2.2k
1SS133
100k
220
35V
22k
2SC2785
DTC124ES
1k
220
10V
1SS133T
4.7k
10
50V
47k
47k
10k 100
10V
470
220p
100
2W
100
50V
100
50V
10
50V
10p
47k
1
1/4W
47
50V
4.7k
220p
10
50V
0.22*2
0.1
0.1
10
680
1W
1SS133T 22k
0.1
0.1
RBV-602
4700
63V
4700
63V
100
50
100
50
SEL5421E
4.7k 1SS133
11ES2
1SS133T
1SS133T
680
2W
680
2W
220
TERMINAL
EARTH
220p
3.3k
3W
10
50V
4700p
250V
4700p
250V
10
50V
2SC2784 47k
100k
4.7k
22k
2SC2785
PROTECTOR
2SC2785
PROTECTOR
1
2
3
4
*1
SPEAKER
AC IN
POWER
POWER
POWER AMP
DRIVE
RELAY
DETECT
Q503,504
OVER LOAD
*1 F901
2.5A/125V
T1AL/250V
US,CND
AEP,UK,MY,SP

SA-WM200
9
SECTION 3
EXPLODED VIEWS
NOTE :
•-XX, -X mean standardized parts, so they
may have some difference from the original
one.
•Color indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) … (RED)
↑↑
Parts color Cabinet's color
•Items marked “ * ”are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•The mechanical parts with no reference number in the
exploded views are not supplied.
•Hardware (# mark) list and accessories and packing
materials are given in the last of this parts list.
• Abbreviation
CND : Canadian model
MY : Malaysia model
SP : Singapore model
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
3-1. MAIN SECTION
6
11
6
6
6
10
9
8
7
3
1
2
4
5
#1 #1
#1
#1
#1
#1
#2
#2
F901
T1
not supplied
not supplied
not supplied
not supplied
not supplied
US, CND
not supplied
not
supplied
SP901
#1
#4
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0sont critiques pour la
sécurité.
Ne les remplacer que par une
piéce portant le numéro spécifié.
14-243-842-01 FRAME, GRILLE
24-999-482-01 KNOB (VOL) (BLACK)
24-999-482-11 KNOB (VOL) (GLAY)...(SILVER) (US,CND)
34-243-834-01 PANEL, FRONT (SILVER) (US,CND)
34-243-834-11 PANEL, FRONT (BLACK) (US,CND)
34-243-834-21 PANEL, FRONT (AEP,UK,MY,SP)
44-998-417-02 EMBLEM (NO.5), SONY
54-973-938-83 KNOB (A), PUSH (SILVER)
54-973-938-93 KNOB (A), PUSH (BLACK)
64-235-677-01 SCREW (4X20) (TYPE1), +BVTP
7A-4737-819-A CABINET ASSY, MY,SPEAKER (BLACK)
(US,CND,MY,SP)
7A-4737-840-A CABINET ASSY, MY,SPEAKER (BLACK)(AEP,UK)
7A-4737-850-A CABINET ASSY, MY,SPEAKER (SILVER)
(US,CND,MY,SP)
7A-4737-854-A CABINET ASSY, MY,SPEAKER (SILVER)(AEP,UK)
*83-703-244-00 BUSHING (2104), CORD
091-777-071-13 CORD, POWER (AEP,UK,MY,SP)
091-783-532-11 CORD, POWER (US,CND)
10 4-999-482-01 KNOB (VOL)
11 4-985-341-01 SCREW (US,CND)
0F901 1-532-463-51 FUSE (T1AL 250V) (AEP,UK,MY,SP)
0F901 1-532-744-11 FUSE, GLASS TUBE (2.5A 125V) (US,CND)
SP901 1-825-004-13 SPEAKER (20CM)
0T1 1-439-624-11 POWER TRANSFORMER (AEP,UK,MY,SP)
0T1 1-439-625-11 POWER TRANSFORMER (US,CND)
#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#2 7-685-881-09 SCREW +BVTT 4X8 (S)
#4 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S (US,CND)

10
SA-WM200
SECTION 4
ELECTRICAL PARTS LIST
MAIN
NOTE :
•Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
•-XX, -X mean standardized parts, so they
may have some difference from the original
one.
•RESISTORS
All resistors are in ohms
METAL : Metal-film resistor
METAL OXIDE :Metal oxide-film resistor
F : nonflammable
•Items marked “ * ”are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•SEMICONDUCTORS
In each case, u : µ, for example :
uA.... : µA.... , uPA.... : µPA....
uPB.... : µPB.... , uPC.... : µPC....
uPD.... : µPD....
•CAPACITORS
uF : µF
•COILS
uH : µH
When indicating parts by reference num-
ber, please include the board.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
• Abbreviation
CND : Canadian model
MY : Malaysia model
SP : Singapore model
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0sont critiques pour la
sécurité.
Ne les remplacer que par une
piéce portant le numéro spécifié.
CONTROL BOARD
*************
< CAPACITOR >
C801 1-126-964-11 ELECT 10uF 20% 50V
< VARIABLE RESISTOR >
RV801 1-227-511-11 RES, VAR, CARBON 20K (LEVEL)
*****************************************************
INPUT CONTROL BOARD
******************
< CAPACITOR >
C101 1-128-813-11 CERAMIC 220PF 5% 50V
C201 1-126-964-11 ELECT 10uF 20% 50V
C701 1-126-947-11 ELECT 47uF 20% 25V
C702 1-126-947-11 ELECT 47uF 20% 25V
C703 1-126-963-11 ELECT 4.7uF 20% 50V
C704 1-131-700-31 FILM 0.47uF 5% 50V
C705 1-136-165-00 FILM 0.1uF 5% 50V
C706 1-126-965-91 ELECT 22uF 20% 50V
< CONNECTOR >
CN101 1-779-179-11 CONNECTOR (B5B-XH-A) 5P
CN701 1-784-931-11 PIN, CONNECTOR 5P
< DIODE >
D201 8-719-911-19 DIODE 1SS119-25
D202 8-719-911-19 DIODE 1SS119-25
D203 8-719-911-19 DIODE 1SS119-25
D204 8-719-911-19 DIODE 1SS119-25
< IC >
IC201 8-759-636-74 IC NJM4565DD
IC701 8-759-636-74 IC NJM4565DD
< JACK >
J101 1-815-025-11 JACK, PIN 1P (INPUT)
< RESISTOR >
R101 1-260-107-11 CARBON 4.7K 5% 1/2W
R102 1-249-441-11 CARBON 100K 5% 1/4W
R103 1-249-441-11 CARBON 100K 5% 1/4W
R104 1-249-425-11 CARBON 4.7K 5% 1/4W F
R105 1-249-425-11 CARBON 4.7K 5% 1/4W F
R106 1-249-425-11 CARBON 4.7K 5% 1/4W F
R107 1-260-107-11 CARBON 4.7K 5% 1/2W
R108 1-249-441-11 CARBON 100K 5% 1/4W
R109 1-249-441-11 CARBON 100K 5% 1/4W
R110 1-249-441-11 CARBON 100K 5% 1/4W
R201 1-249-425-11 CARBON 4.7K 5% 1/4W F
R203 1-249-425-11 CARBON 4.7K 5% 1/4W F
R204 1-249-425-11 CARBON 4.7K 5% 1/4W F
R701 1-249-425-11 CARBON 4.7K 5% 1/4W F
R702 1-249-429-11 CARBON 10K 5% 1/4W
R703 1-249-425-11 CARBON 4.7K 5% 1/4W F
R704 1-249-425-11 CARBON 4.7K 5% 1/4W F
R705 1-247-887-00 CARBON 220K 5% 1/4W
R706 1-249-425-11 CARBON 4.7K 5% 1/4W F
R707 1-249-429-11 CARBON 10K 5% 1/4W
R708 1-249-429-11 CARBON 10K 5% 1/4W
< VARIABLE RESISTOR >
RV701 1-227-365-11 RES, VAR, CARBON 20K/20K (CUT OFF FREQ)
< SWITCH >
S701 1-786-490-11 SWITCH, SLIDE (PHASE)
< TERMINAL BOARD >
TM101 1-537-922-11 TERMINAL BOARD (SP) (SPEAKER)
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MAIN BOARD
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C203 1-136-165-00 FILM 0.1uF 5% 50V
C204 1-136-165-00 FILM 0.1uF 5% 50V
C205 1-126-964-11 ELECT 10uF 20% 50V
C206 1-126-964-11 ELECT 10uF 20% 50V
C209 1-128-813-11 CERAMIC 220PF 5% 50V
C210 1-126-964-11 ELECT 10uF 20% 50V
C211 1-128-813-11 CERAMIC 220PF 5% 50V
C301 1-128-813-11 CERAMIC 220PF 5% 50V
C302 1-126-964-11 ELECT 10uF 20% 50V
C303 1-104-665-11 ELECT 100uF 20% 10V
C304 1-126-968-11 ELECT 100uF 20% 50V
C305 1-126-968-11 ELECT 100uF 20% 50V
C306 1-126-964-11 ELECT 10uF 20% 50V
C307 1-126-967-11 ELECT 47uF 20% 50V
C308 1-126-964-11 ELECT 10uF 20% 50V
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